Combination roof-framing tool



UNITED STATES PATENT OFFICE.

COMBINATION ROOF-FRAMING TOOL.

Specification of Letters Patent.

Application filed December 23, 1918. Serial No. 268,061.

T0 all whom t may concern:

Be it known that I, HERMAN W. SCOTT, a citizen of the United States residing at Gardiner, in the county of ennebec and State of Maine, have invented certain new and useful Improvements in Combination Roof-Framing Tools, of which the Jfollowing is a specification. a

This invention relates to an improved square for usein cutting and assembling of beams to obtain the proper angle when building the roof of a building and the device may be termed' a combination. roof framing tool. While it is used principally when constructing a root it is to be understood that its use is not limited to this particular use but may be used wherever it may be employed with advantage. The principal object of the invention' is to provide a square so constructed that the blade may be moved to a desired angle andsecured in this position and at the same 'time a second blade pivotally connected with the stock or handle angularly adjusted thereby permitting the angle of the second blade to be ascertained through the medium of a scale or protractor connected with the main blade of the square. Another object of the invention is to provide improved means for releasably connecting the protractor with the square blade, the fastening means being so constructedthat the protractor will be held in tight engagement with the blade but permitted to be easily and quickly released when desired. Another object of the invention is to provide an improved type of actuating devicefor the auxiliary blade pivotally connected with the handle, this actuating device being slidably connected with the shank or handle and actuated by the blade of the square when the blade is swung upon its pivot. This in'- vention shows certain accompanying drawings whereinl Figure 1 is a plan view of the improved square, l

Fig. 2 is a view showing the improved square in elevation,

Fig. 3 is an enlarged transverse sectional view through the handle p ortion of the square on the'line 3 3 of Fig. 2,

Fig. 4 is a sectional view taken along the lines 4 4 of Fig. 1,

Fig. 5 is a sectional view taken along the lines 5--5 of Fig. l,

Fig. 6 is a fragmentary view of the haiidle portion of this square looking from the opposite side to that shown in Fig. 1. This square is provided with Aa handle or stock formed of two plates or` side sections 10 and 11 which are formed of angle iron to provide the side flanges 12 and end lianges 13. These side plates are held in spaced rela- Patented J une 1, 1920.

tion by the spacing strips 14 and l5 thus l' providing a slot or pocket 16 in the handle. Openings 17 are formed in one of the side plates to receive spirit level 18 so that this device may be used as a level as well as being used as a square. This handle is further provided in the side plate 10 with a longitudinally extending slot 19 having an enlarged end portion 2O and is provided in the side plates 11 with a cut out 21 forming pointers 22 and further providing a sight opening so that the quadrant to be hereinafter described may be seen through thehandle.

The blade 23 is positioned between the side plates or bars of the handle and pivotally mounted through the medium of the pivot pin 24 and is provided with an auxiliary arm 23 at right angles to the blade and which lies longitudinally between the side plates when the blade is extending in its normal position at right angles to the handle. This blade and arm carry protractor 25 which extends from the auxiliary arm to the blade. This protractor will be pivotally connected with the auxiliary arm as at 25a so that it may be swung out of the normal position disclosed in Fig. 1 when desired and has its free end portion 26 reduced to fit into a cut out or seat 27 formed in the blade 23. A pin 28 is carried by the reduced end portion of the protractor and fits into an opening 29 formed in the blade 23 and in order to retain this pin against accidental removal from the opening 29 there has been provided a latch or fastener* 30 which is slidably mounted in a seat 31 formed in the protractor. When this latch is moved to the position shown in Figs. 1 and 4 it will be readily seen that the protractor'will be securely connected with the blade 23.' From an inspection of Fig. 5 it will be readily seen that this latch cannot slip out of engagement with the protractor and become lost as the socket 31 engage the protractor to secure the same against movement thus releasably holding the blade in an adjusted position. It will thus be seen that with this construction the blade 23 can be swung to the desired angular relation with respect to the stock or handle secured in this position by the set screw 32 the angle of the blade being ascertained through the medium of the pointers 22.

An auxiliary blade 33 having a longitudinally extending flange 34 and a longitudinally extending slot 35 is positioned longitudinally of the plate 10 of the stock or handle and is pivotally mounted upon one terminal of a pivot pin 36 mounted in bearings 37 and provided with a turning nut 38 so that this pivot pin may be rotated and thus moved out of engagement with the blade 33 to release the latter. The pin 36 is threaded in one of the bearings 37 so that longitudinal adjustment thereof is effected during rotation. It will thus be seen that when desired this blade 33 can be disconnected from the stock. It is desired to have this auxiliary blade moved through the medium of the blade 23 and there has therefore been provided a sli-de slidably connected with the plate 10 oit' the stock and having engagement with the blade 33 and further having a tongue 41 for engagement by the blade 23.

This slide is formed of sheet metal stamped and bent'to provide the base 39 from which extends the standard 40 and finger 41. The base is bent to provide a longitudinally extending rib 42 engaged by the securing plate 43 secured to the side plate 1() and from an inspection of Figs. 1 and 3 it will be readily seen that this plate 43 will hold the slide in engagement with the stock but permit sliding movement of said slide longitudinally of the stock. The standard 40 carries a pin 44 which passes through the slot 35 of the auxiliary blade so that when the slide is moved longitudinally of the stock this pin will cause the auxiliary blade i to swing upon its pivot pin. The tongue 41 extends from the base plate 39 of this slide through the slot 19 and as shown in Fig. 3 extends through the space between the plates 10 and 11 into operative position with respect to the blade 23. When this blade 23 is swung upon its pivot 24 it will engage the tongue 41 and will therefore move this slide longitudinally of the stock and thereby adjust the angle of the auxiliary blade. WVhen it is desired to return the auxiliary blade to the original position it is simply necessary to swing it to this position or move the slide and thus cause the blade to swing upon its pivot pin to the original position. It will thus be seen that this auxiliary blade may be easily swung to an adjusted position and retained in the adjusted position by frictional engagement between the base plate and clamping plate and further that the angle of the auxiliary blade can be easily ascertained through the medium of the protractor of the main blade.

What I claim is:

1. A square comprising a handle having a longitudinally extending slot, a blade pivotally mounted in the slot of the handle and having an arm normally extending through the slot, a protractor having one end portion pivotally connected with the arm of the blade, means releasably connecting the op-` posite end portion of the protractor with the blade, and means for engaging the protractor to releasably hold the same against movement and retain the blade in an adjusted position.

2. A square having a handle comprising side plates positioned in spaced relation, a blade pivotally mounted between the side plates of the handle and having an arm normally extending between the side plates, a protractor having one end portion connected with the arm and the opposite end portion thereof releasably connected with the blade, and means carried by one of the side plates of the handle to engage the protractor and releasably hold the blade against movement.

3. 'A square comprising a handle, a blade pivotally connected with the handle and including an angularly directed arm, a protractor having one end portion connected with the side arm and having its opposite end portion extending in overlapping relation to the blade, a pin carried by thel protractor and extending through an opening formed in the blade, a latch slidably connected with the protractor for movement into and out of engagement with the blade and means carried by the handle for engaging the protractor to releasably hold the same against movement and retain the blade in an adjusted position.

4. A square comprising a handle, a blade pivotally connected with the handle, a protractor having one end portion extending in overlapping relation to the blade, a pin carried by the overlapping end portion of the protractor and extending through an opening formed in the blade, a latch movably connected with the protractor for movement into and out of engagement with the blade, and means carried by the handle to engage the protractor and releasably hold the same against movement with relation to the handle.

5. A square comprising a handle, a blade pivotally connected with the handle, means for indicating the angle at which the blade extends with respect to the handle, an auxiliary blade pivotally connected with the handle, and means for adjusting angle of the auxiliary blade slidably connected with the handle and having a part extending intothe path of movement of the first mentioned blade.

6. A square comprising a handle, a mainV blade pivotally connected with the handle, means for indicating the angle o the main blade with respect to the handle, anV auxiliary blade pivotally connected with the handle, and actuating means for the auxiliary blade slidably connected with the handle and having a part extending into the path of travel of the main blade for receiving movement therefrom when the main blade is swung in one direction.

7. A square comprising a handle, a main blade pivotally connected with the handle, an auxiliary blade pivotally connected with the handle for movement in a plane at right angles to the plane of movement of the main blade, and actuating means for the auxiliary V blade carried by the handle and receiving movement from the main blade when the main blade is swung in one direction.

8. A square comprising a handle, a main blade pivotally connected with the handle, an auxiliary blade pivotallyconnected with the handle, a slide having a base slidably connected with the handle, a standard extending from t-he base and having sliding engagement with the auxiliary blade thereby causing pivotal movement to the same when the slide moves upon the handle, and an abutment extending from the' base into,

the Vpath of movement of the main blade and engaged by the main blade to` impart movement to the slide when the main blade is swung in one direction.

9. A square comprising a handle, a main blade pivotally connected with the handle,

the handle having a longitudinally extendswinging movement to the auxiliary blade when the main blade tion.

10. A square comprising a handle having is swung in one direcside plates, one of the side plates being provided with a longitudinally extending slot, a main blade pivotally mounted between the side plates of thehandle, an auxiliary blade pivotally ,connected with the slotted side plates for movement in a plane at right angles to the plane olfV movement of the main blade, ak slide slidably connected with the handle and having sliding engagement with the auxiliary blade, and a tongue extending from the slide into the path of movement of the main blade.

In testimony whereof I affix my signature hereto. f

HERMAN w. scoTT. 

